2-Bromo-2-Nitro-1 3-Propanediol (Bronopol)
CAS No.:
52-51-7
Molecular Formula:
C3H6BrNO4
Molecular Weight:
199.99
Structure Formula:
Properties:
Appearance – 2-Bromo-2-Nitro-1 3-Propanediol (Bronopol) is supplied as crystals or crystalline powder, which may vary from white to pale yellow depending on the material grade offered.
Melting Point – As a pure material, Bronopol has a melting point of about 130℃. However, due to its polymorphic characteristics, Bronopol undergoes a lattice rearrangement at 100~105℃, and this can often be wrongly interpreted as the melting point.
At temperatures above 140℃, 2-Bromo-2-Nitro-1, 3-Propanediol will decompose exothermically, releasing Hydrogen bromide and oxides of Nitrogen.
Solubility – 2-Bromo-2-Nitro-1 3-Propanediol is readily soluble in water, although the dissolution process is endothermic. Solutions containing up to 28% w/v are possible at ambient temperature.
2-Bromo-2-Nitro-1 3-Propanediol (Bronopol) is poorly soluble in non-polar solvents but shows a high affinity for polar organic solvents.
Specifications:
| Item | Index |
|---|---|
| Characteristics | White or almost white crystalline powder |
| Identification | Ir Positive |
| Melting Point, °C | 123-131 |
| Acidity(1%W/V) | pH 5.0-7.0 |
| Related Substances | GC |
| Loss on Drying, % | 0.5 Max. |
| Sulphated Ash, % | 0.1 Min. |
| Granular | 20mesh: 90% Pass,10mesh: 95% Pass |
| Assay, % | 99.0-101.0 |
Other Specs are the same as BP2000.
Uses:
Bronopol is widely used in industrial circulating water, algae-killing, paper pulp, paint, plastic, timber-cooling circulating water, and other industries as a bactericide. In addition, Bronopol can be used to prevent daily-used cosmetic products from moldy and corrosion.
Packing and Storage:
Packed by paper drum (25KG/50KG) or as per customer requirement.
Store Bronopol in cool, dry, and ventilative places. Keep away from incompatible substances. It can not be stored together with food and feedstuff.
Bronopol synonyms:
2-Bromo-2-Nitro-1 3-Propanediol, Bronopol, BNP.